Human soft tissue cutting wire, and method for manufacturing same

Abstract

A wire for cutting human soft tissue and a manufacturing method thereof are disclosed. The method includes at least: forming a first stranded wire using a plurality of element wires; forming a second stranded wire using the first stranded wires; washing the second stranded wire with acetone and alcohol; mounting the second stranded wire, subjected to the third step, in a vacuum arc deposition system equipped with a cathodic arc source; forming a vacuum level of 10−6 Torr or less in the vacuum system; cleaning the second stranded wire, subjected to the fourth step, in the vacuum system; and forming a hard coating layer of a compound containing titanium nitride (TiN) on the surface of the second stranded wire 3 at 400° C. in the vacuum system.

1 . A method for manufacturing a wire for cutting human soft tissue, the method comprising:
 a first step of forming a first stranded wire using a plurality of element wires;   a second step of forming a second stranded wire using the first stranded wires;   a third step of washing the second stranded wire with acetone and alcohol;   a fourth step of mounting the second stranded wire, subjected to the third step, in a vacuum arc deposition system equipped with a cathodic arc source;   a fifth step of creating a vacuum of 10 −6  Torr or less in the vacuum system;   a sixth step of cleaning the second stranded wire, subjected to the fourth step, in the vacuum system; and   a seventh step of forming a hard coating layer of a compound containing titanium nitride (TiN) on a surface of the second stranded wire at 400° C. in the vacuum system,   wherein the element wire has a thickness of 26 to 28 μm and is made of stainless steel,   the first stranded wire is formed by disposing one element wire at a center, disposing six element wires around the element wire disposed at the center, and twisting a total of seven element wires, and   the second stranded wire is formed by disposing one first stranded wire at a center, disposing six first stranded wires around the first stranded wire disposed at the center, and twisting a total of seven first stranded wires.   
     
     
         2 . The method of  claim 1 , wherein the second stranded wire has a thickness of 262 to 280 μm. 
     
     
         3 . The method of  claim 2 , wherein the second stranded wire has a thickness of 268 to 272 μm. 
     
     
         4 . A wire for cutting human soft tissue manufactured by the method set forth in  claim 1 . 
     
     
         5 . A wire for cutting human soft tissue manufactured by the method set forth in  claim 2 . 
     
     
         6 . A wire for cutting human soft tissue manufactured by the method set forth in  claim 3 .